So far so good Informal

Things have gone well up to the present moment, though the outcome is still not fully certain.

It’s a cautiously optimistic progress check, often implying that the speaker isn’t ready to declare full success just yet.

The phrase is a simple, functional construction rather than a coined literary phrase: “so far” marks the point reached so far in some ongoing process, and “so good” reports that things are satisfactory at that checkpoint. It requires no historical event or figurative leap to explain, since both halves are used in their plain, literal sense; its long-standing popularity in spoken English comes from how naturally and briefly it answers the common question of how something in progress is going, without over-committing to a final verdict.

We’re two weeks into the renovation, and so far so good.

The new medication seems to be working — so far so good.

So far so good with the new job, I’m settling in well.

A: How’s the diet going? B: So far so good, actually.